Evidence map›Paper›PMID 26893170›Full record

Trial reportBMC pharmacology & toxicology2016

Pharmacokinetics of oral and intravenous melatonin in healthy volunteers.

Lars P H Andersen, Mads U Werner, Mette M Rosenkilde, Nathja G Harpsøe, Hanne Fuglsang, Jacob Rosenberg, Ismail Gögenur

Registry-linked trialOpen access · goldAbstract readClinical TrialComparative Study
In one paragraph

Trial report in BMC pharmacology & toxicology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01923974 (The Analgesic Effects of Melatonin), which is not on this map. Cited by 91 papers.

0numbers the graph read from it
0cells of the map it votes in
91citing papers in PubMed
4.6field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT01923974 phase2 / phase3completednot on this map

The Analgesic Effects of Melatonin: A Randomized, Placebo-controlled, Double-blinded Study on Healthy Volunteers

TypeinterventionalSponsorLars Peter Holst AndersenRan2013 to 2014Enrolled36ConditionsAnalgesia, AntihyperalgesiaArmsMelatonin 10 mg, Melatonin 100 mg, Placebo
3 · Its place in the literature

Who cites it

91 citing papers in PubMed, 174 citations in OpenAlex.

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  6. Is the Addition of Sublingual Melatonin to Omeprazole Superior to Omeprazole Alone in the Management of Gastroesophageal Reflux Disease Symptoms: A Clinical Trial.The Turkish journal of gastroenterology : the official journal of Turkish Society of Gastroenterology · 2023
    Trial
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  10. Bioavailability of OniriaDrugs in R&D · 2022
    Trial
  11. Antioxidant Effect of Melatonin in Preterm Newborns.Oxidative medicine and cellular longevity · 2021
    Trial
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  14. Article
  15. Review
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  19. Responsiveness of ThymoDreamFrontiers in sleep · 2026
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31 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 1 country.

Lars P H AndersenDepartment of Surgery D, Herlev Hospital, University of Copenhagen, Herlev, DK-2730, Denmark. lphandersen@gmail.com.
Mads U WernerMultidisciplinary Pain Center 7612, Neuroscience Center, Rigshospitalet, Copenhagen, DK-2100, Denmark. mads.u.werner@gmail.com.
Mette M RosenkildeDepartment of Neuroscience and Pharmacology, University of Copenhagen, Copenhagen, DK-2100, Denmark. rosenkilde@sund.ku.dk.
Nathja G HarpsøeDepartment of Surgery D, Herlev Hospital, University of Copenhagen, Herlev, DK-2730, Denmark. kxq761@alumni.ku.dk.
Hanne FuglsangDepartment of Surgery D, Herlev Hospital, University of Copenhagen, Herlev, DK-2730, Denmark. Hanne.Fuglsang@regionh.dk.
Jacob RosenbergDepartment of Surgery D, Herlev Hospital, University of Copenhagen, Herlev, DK-2730, Denmark. Jacob.Rosenberg@regionh.dk.
Ismail GögenurDepartment of Surgery, Roskilde and Køge Hospital, University of Copenhagen, Roskilde, DK-4000, Denmark. igo@regionsjaelland.dk.
University of Copenhagen · DKHerlev Hospital · DKRigshospitalet · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe aim was to investigate the pharmacokinetics of oral and iv melatonin in healthy volunteers.

methodsThe study was performed as a cohort crossover study. The volunteers received either 10 mg oral melatonin or 10 mg intravenous melatonin on two separate study days. Blood samples were collected at different time points following oral administration and short iv infusion, respectively. Plasma melatonin concentrations were determined by RIA technique. Pharmacokinetic analyses were performed by "the method of residuals" and compartmental analysis. The pharmacokinetic variables: k a, t 1/2 absorption, t max, C max, t 1/2 elimination, AUC 0-∞, and bioavailability were determined for oral melatonin. C max, t 1/2 elimination, V d, CL and AUC 0-∞ were determined for intravenous melatonin.

resultsTwelve male volunteers completed the study. Baseline melatonin plasma levels did not differ significantly between the study days (P = 0.067). Mean (SD) t 1/2 absorption of oral melatonin was 6.0 (3.1) min. Mean t max was 40.8 (17.8) min with a median (IQR) C max of 3550.5 (2500.5-8057.5) pg ml(-1). Mean t 1/2 elimination was 53.7 (7.0) min. Median absolute bioavailability was 2.5 (1.7-4.7) %. Median C max after short iv infusion of melatonin was 389,875.0 (174,775.0-440,362.5) pg ml(-1). Mean t 1/2 elimination was 39.4 (3.6) min, mean V d 1.2 (0.6) l kg(-1) and mean CL 0.0218 (0.0102) l min(-1) kg(-1).

conclusionsThis cohort crossover study estimated pharmacokinetics of oral and iv melatonin, respectively in healthy volunteers. Bioavailability of oral melatonin was only 3 %.

trial registrationEudra-CT number: 2013-000205-23 (initial registration 27.03.2013). Clinicaltrials.gov Identifier: NCT01923974 (initial registration 08.08.2013).

Indexed as

Administration, OralAdultAntioxidantsBiological AvailabilityCentral Nervous System DepressantsCohort StudiesCross-Over StudiesHalf-LifeHumansInfusions, IntravenousIntestinal AbsorptionMaleMelatoninYoung AdultAntioxidantsCentral Nervous System DepressantsMelatonin

Identifiers

PMID26893170
PMCPMC4759723
OpenAlexW2299543356

What OpenQuestion holds

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Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.